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SUMMARY:Stabilizing relativistic fluids on slowly expanding cosmological s
 pacetimes - Zoe Wyatt (DPMMS)
DTSTART:20211015T120000Z
DTEND:20211015T130000Z
UID:TALK161926@talks.cam.ac.uk
CONTACT:Justin Ripley
DESCRIPTION:On a background Minkowski spacetime\, the relativistic Euler e
 quations\nare known\, for a relatively general equation of state\, to admi
 t unstable\nhomogeneous solutions with finite-time shock formation. By con
 trast\,\nsuch shock formation can be suppressed on background cosmological
 \nspacetimes whose spatial slices expand at an accelerated rate. The\ncrit
 ical case of linear\, ie zero-accelerated\, spatial expansion\, is not\nas
  well understood. In this talk\, I will present two recent works\nconcerni
 ng the relativistic Euler and the Einstein-Dust equations for\ngeometries 
 expanding at a linear rate. This is based on joint works with\nDavid Fajma
 n\, Todd Oliynyk and Max Ofner.\n\nThis will be a hybrid seminar\; \nZoom 
 link information for remote participation is below\n\nTopic: Friday GR Sem
 inar\nTime: Oct 15\, 2021 01:00 PM London\n\nJoin Zoom Meeting\nhttps://ma
 ths-cam-ac-uk.zoom.us/j/97331010435?pwd=c0FWU2hGUVRBd0lrbDNtcFd1c25EQT09\n
 \nMeeting ID: 973 3101 0435\nPasscode: 073244
LOCATION:Potter room/Zoom
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